News

Advanced Search

Search Results

Headers Only
   
Lightbox 2ct pendant
Lightbox Now Declaring Post-Growth Treatments
Lightbox, De Beers’ lab-grown brand, has started disclosing the treatments it uses to create its synthetic diamonds — but
News Nov 03, 2021 Joshua Freedman
Synthetic ruby with lead glass filling
GIA Spots Synthetic Ruby with Filling Treatment
The Gemological Institute of America (GIA) has identified a laboratory-grown ruby filled with lead glass — a rare phenomenon,
News Jul 21, 2021 Rapaport News
GIA color grading
GIA Recalls Diamonds over Treatment Query
The Gemological Institute of America (GIA) has asked customers to return a number of colored diamonds for reassessment, suspecting
News Apr 18, 2021 Joshua Freedman
GIA treated green-yellow diamond Apr 2021
‘Peculiar’ Coloring Helps GIA Spot Treatment
The Gemological Institute of America (GIA) has identified a fancy-color diamond containing rare lines of blue, positing that
News Apr 08, 2021 Rapaport News
WD Lab Grown Diamonds
WD Sues Diamond Growers over CVD Patents
The companies behind WD Lab Grown Diamonds have filed three lawsuits against competitors, accusing them of infringing
News Jan 12, 2020 Rapaport News
CIBJO
CIBJO Calls for Synthetics Treatment Disclosure
The World Jewellery Confederation (CIBJO) has specified the need to disclose treatments when it comes to both natural
News Mar 17, 2019 Rapaport News
Irradiated melee
GIA Spots CVD Stone in Parcel of Treated Melee
In a rare case, the Gemological Institute of America (GIA) has discovered an irradiated chemical vapor deposition (CVD) diamond
News Feb 10, 2019 Rapaport News
GIA 150
GIA Spots Treatment Fraud with 6ct. Polished
The Gemological Institute of America (GIA) has uncovered a treated diamond carrying a false inscription that fraudsters had
News May 30, 2018 Rapaport News
GIA
GIA Notifies the Trade of Undisclosed Diamond Treatment
The Gemological Institute of America (GIA) reported that approximately 500 colorless to near-colorless diamonds that were submitted
News May 12, 2015 Jeff Miller
Previous 1 Next
Show articles per page
Weekly Market Comment

Sentiment upbeat after strong start to holiday season. Jewelry sales

Rapaport Reports

Magazine
Authentication station

Image: De Beers Alrosa: Diamond Inspector Russian mining giant Alrosa’s

MOST VIEWED
© Copyright 1978-2021 by Rapaport USA Inc. All rights reserved. Index®, RapNet®, Rapaport®, PriceGrid™, Diamonds.Net™, and JNS®; are registered TradeMarks.
While the information presented is from sources we believe reliable, we do not guarantee the accuracy or validity of any information presented by Rapaport or the views expressed by users of our internet service.